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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">zhps</journal-id><journal-title-group><journal-title xml:lang="ru">Журнал прикладной спектроскопии</journal-title><trans-title-group xml:lang="en"><trans-title>Zhurnal Prikladnoii Spektroskopii</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0514-7506</issn><publisher><publisher-name>B. I. Stepanov Institute of Physics of the National Academy of Sciences</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">zhps-880</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>АННОТАЦИИ АНГЛОЯЗЫЧНЫХ СТАТЕЙ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ABSTRACTS ENGLISH-LANGUAGE ARTICLES</subject></subj-group></article-categories><title-group><article-title>Исследование структуры и валентных состояний Ru-Mn в Li2Mn0.9Ru0.1O3 методами комбинационного рассеяния света и рентгеновской спектроскопии поглощения</article-title><trans-title-group xml:lang="en"><trans-title>Raman and x-ray absorption spectroscopy investigations of the structure and Ru-Mn valence states of Li2Mn0.9Ru0.1O3</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Singh</surname><given-names>B.</given-names></name><name name-style="western" xml:lang="en"><surname>Singh</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Праяградж-211002</p></bio><bio xml:lang="en"><p>Prayagraj-211002</p></bio><email xlink:type="simple">braj.iit@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Singh</surname><given-names>P.</given-names></name><name name-style="western" xml:lang="en"><surname>Singh</surname><given-names>P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Праяградж-211002</p></bio><bio xml:lang="en"><p>Prayagraj-211002</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Gupta</surname><given-names>M.</given-names></name><name name-style="western" xml:lang="en"><surname>Gupta</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Университетский городок, Индор-452017</p></bio><bio xml:lang="en"><p>University Campus, Indore-452017</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Центр материаловедения Университета Аллахабада</institution></aff><aff xml:lang="en"><institution>Materials Chemistry Lab, Centre of Material Sciences at University of Allahabad</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Консорциум UGC DAE по научным исследованиям</institution></aff><aff xml:lang="en"><institution>UGC DAE Consortium for Scientific Research</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>26</day><month>07</month><year>2021</year></pub-date><volume>88</volume><issue>4</issue><fpage>664</fpage><lpage>671</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Singh B., Singh P., Gupta M., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Singh B., Singh P., Gupta M.</copyright-holder><copyright-holder xml:lang="en">Singh B., Singh P., Gupta M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://zhps.ejournal.by/jour/article/view/880">https://zhps.ejournal.by/jour/article/view/880</self-uri><abstract><p>Проанализировано влияние температуры спекания на структуру и валентные состояния Ru-Mn в Li2Mn0.9Ru0.1O3. Эффекты исследованы с помощью синхротронных рентгенограмм, спектров комбинационного рассеяния и спектров рентгеновской спектроскопии поглощения (анализ края поглощения Ru-M4, Mn-L2,3 и O-K). Допирование Ru в узле Mn в Li2MnO3 изменяет параметры решетки исходного вещества Li2MnO3. В спектре Li2Mn0.9Ru0.1O3, спеченного при 950°C, два максимума края поглощения Ru-M4 подтверждают наличие смешанных валентных состояний Ru+4 и Ru+5 . Соединение Li2Mn0.9Ru0.1O3, спеченное при 1050°C, показывает только один максимум Ru-M4, что подтверждает наличие валентного состояния Ru+4 . Край поглощения Mn-L3 для Li2Mn0.9Ru0.1O3 смещается в сторону более низкой энергии по сравнению с Li2MnO3. Из-за наличия гибридизации Mn+3 -O в спеченном при 950°C веществе Li2Mn0.9Ru0.1O3 край поглощения O-K Li2Mn0.9Ru0.1O3 обнаруживает новый максимум по сравнению с Li2MnO3. Спектр комбинационного рассеяния Li2Mn0.9Ru0.1O3 показывает расщепление и сдвиг пика при изменении условий спекания. Наличие смешанных валентностей Mn+3 , Mn+4 , Ru+4 и Ru+5 в решетке спеченного при температуре 950°C Li2Mn0.9Ru0.1O3 может влиять на зарядно-разрядные свойства катода Li2Mn0.9Ru0.1O3. </p></abstract><trans-abstract xml:lang="en"><p>We report the effect of the sintering temperature on the structure and valence states of Ru-Mn in Li2Mn0.9Ru0.1O3. These effects are explored by synchrotron X-ray diffraction patterns, Raman and X-ray absorption spectroscopy spectra (analysis of the Ru-M4, Mn-L2,3, and O-K edges). Ru doping at the Mn site in Li2MnO3 changes the lattice parameters of the parent Li2MnO3. Li2Mn0.9Ru0.1O3 sintered at 950o C shows two peaks of the Ru-M4 absorption edge. These peaks confirm the presence of mixed valence states Ru+4  and Ru+5 . The compound Li2Mn0.9Ru0.1O3 sintered at 1050o C shows only one peak of the Ru-M4 absorption edge, which reveals the presence of the Ru+4  valence state. The Mn-L3 absorption edge of Li2Mn0.9Ru0.1O3 shifts towards lower energy in comparison to the absorption edge of Li2MnO3. The O-K absorption edge of Li2Mn0.9Ru0.1O3 shows the origin of a new peak in comparison to the absorption edge of Li2MnO3 due to the presence of Mn+3  – O hybridization in Li2Mn0.9Ru0.1O3 sintered at 950o C. The Raman spectrum of Li2Mn0.9Ru0.1O3 shows splitting and peak shifting with the change in the sintering conditions. The presence of mixed valences Mn+3, Mn+4 , Ru+4 , and Ru+5  in the lattice of Li2Mn0.9Ru0.1O3 sintered at 950o C may affect the charge–discharge properties of the Li2Mn0.9Ru0.1O3 cathode. </p></trans-abstract><kwd-group xml:lang="ru"><kwd>синхротронные рентгеновские лучи</kwd><kwd>спектроскопия комбинационного рассеяния</kwd><kwd>смешанная валентность</kwd><kwd>край поглощения M4</kwd><kwd>край поглощения O-K</kwd></kwd-group><kwd-group xml:lang="en"><kwd>synchrotron X-ray</kwd><kwd>Raman spectroscopy</kwd><kwd>mixed valence</kwd><kwd>M4 absorption edge</kwd><kwd>O-K absorption edge</kwd></kwd-group><funding-group><funding-statement xml:lang="en">B. Singh thanks the UGC-DAE-CSR, Indore Centre for providing financial support under the CRS project scheme and Priyanka for the project fellowship. 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